Objects of this class store and manipulate metadata for "datetime year to fraction(3)" columns in a database. Column metadata objects store information about columns (data type, size, etc.) and are responsible for creating object methods that manipulate column values.

Convert VALUE to the equivalent DateTime object suitable for storage in a "datetime year to fraction(3)" column. VALUE maybe returned unmodified if it is a valid "datetime year to fraction(3)" keyword or otherwise has special meaning to the underlying database. DB is a Rose::DB object that is used as part of the parsing process. Both arguments are required.